B1.1.13—Non-polar steroids
Steroids are mostly non-polar lipids with fused carbon rings, allowing steroid hormones to interact with hydrophobic membrane interiors in cells.
- Syllabus
- First assessment 2025
- Objective
- B1.1.13
- Level
- HL
Exam analysis
Chance of appearing1%of analysed past papers
Latest appearanceNovember 2021
Most common paperPaper1
Typical marks1
Common command terms
- Identify
Recent exam appearances
November 2021Paper1 ["HL"] · TZ05[ 1 ]B1.1.13—Non-polar steroids
Practice this objective
Coverage 2021–2021 · Updated 15 Jul 2026
Concept essentials
- Steroids are lipids with four fused carbon rings.
- Steroid molecules are mostly non-polar.
- Testosterone and oestradiol are steroid hormones.
- Non-polar steroid hormones can interact with hydrophobic membrane interiors.